Context Navigation

nanoBTS 1800

PCB photographs

see attachments at the end of this page.

Debug Port

There is a serial port for debugging. This port can be accessed via one of the two TIB RJ45 jacks, but only after
a small hardware modification has been made. Please reference the following picture for details.

After soldering those two connections, the pin-out of TIB out is as follows:

Pin 7: PPC UART Tx (3.3V)

Pin 8: PPC UART Rx (3.3V)

Pin 10: Ground

You can use any level shifter to get the signal up to true RS323 values, or directly connect something like a FT232.

The port runs at 115200 bps, 8N1

There seems to be some kind of serial console on the device, we haven't yet figured out more details.